The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2020
Filed:
Apr. 30, 2019
Applicant:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Inventors:
Bing Li, Mequon, WI (US);
Timothy M. Rowan, Wauwatosa, WI (US);
Zhenyu Ye, Mequon, WI (US);
Zhendong Zhang, Mequon, WI (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/13 (2006.01); H02P 21/22 (2016.01); H02P 21/00 (2016.01);
U.S. Cl.
CPC ...
H02P 21/13 (2013.01); H02P 21/0003 (2013.01); H02P 21/22 (2016.02);
Abstract
For counter electromotive force estimation, a disturbance estimator calculates an estimated disturbance as a control function of a quadrature axis current regulator output signal and a quadrature axis current feedback signal of a running permanent magnet motor. A calculator calculates an estimated counter electromotive force of the running permanent magnet motor as a function of the estimated disturbance, a control flux, and an angular velocity.